I hate my boobs, too. I'm only 22 and they are as saggy as they're going to get. And a 34D, which is an improvement from a 34F when Luka was born. I squeeze into an old 36C Victoria Secret bra because I can't afford a new bra from VS and I am really allergic to latex, which seems to be in every other bra I've tried. Half of my nipples hang out the top of my bra. Aside from the latex issue, I found the target nursing tank top pretty comfy. A size medium works for me, a 34D size 4. I wore an XL when I was at a 34F postpartum. When I really need a nursing bra, I wear it and deal with the itchy rash.
I go braless about 75% of the time even though my nipples hang halfway to my belly button (and yes, can easily reach my mouth
). All breasts sag eventually and it's okay. Even if it does make us self-conscious. We are grown women, not 14 yr. olds.